A Flash Flood Warning was issued for northeastern Josephine County, including the city of Grants Pass, at 27/1648 PDT effective until 27/1815 PDT. The warning was expired at 27/1814 PDT.
Every event with a place to put it; 3 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS MFR wrote it up.
A Flash Flood Warning was issued for northeastern Josephine County, including the city of Grants Pass, at 27/1648 PDT effective until 27/1815 PDT. The warning was expired at 27/1814 PDT. The above reports verify that extraordinarily heavy rain (for this region) fell in the warning area. Several other reports were received indicating mud and debris on county roads and street flooding in the city of Grants Pass.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Medford, OR wrote its last area forecast discussion before the first event at Apr 27, 2:15 PM PST, 2 hours 41 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MEDFORD OR 315 PM PDT WED APR 27 2005 .DISCUSSION... SATELLITE/RADAR SHOWING SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS FORMING OVER MOUNTAIN RIDGES IN OUR FORECAST AREA AND DRIFTING OVER NEARBY VALLEYS. THESE STORMS OVER THE MOUNTAINS SHOULD CONTINUE FOR THE NEXT SEVERAL HOURS AND GRADUALLY DIE OFF AFTER SUNDOWN. THE UPPER LEVEL FLOW SHIFTS FROM SOUTHEAST TO NORTH TONIGHT AND SHOWERY PRECIP WILL TRANSITION INTO AREAS OF STRATIFIED RAIN OVERNIGHT. AFTER THE UPPER LOW PARKED OFF THE WEST COAST MOVES INLAND THURSDAY AFTERNOON WE RETURN TO A MORE NORMAL WEATHER REGIME WITH WESTERLY FLOW ALOFT. MODEL GUIDANCE INDICATES A FLAT ZONAL PATTERN LIKE THIS WILL ALLOW SEVERAL WEAK IMPULSES TO MOVE QUICKLY THROUGH THE PAC NW THIS WEEKEND. WILL MAINTAIN MINIMAL POPS THROUGH EXTENDED PORTION OF THE FORECAST. && .MFR WATCHES/WARNINGS/ADVISORIES... OR...NONE. CA...NONE. && ALSO VISIT THE NWS ON THE WEB AT WEATHER.GOV/MEDFORD
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MEDFORD OR 500 PM PDT WED APR 27 2005 CAZ080-ORZ023>026-280600- CENTRAL DOUGLAS COUNTY-EASTERN CURRY COUNTY AND JOSEPHINE COUNTY- EASTERN DOUGLAS COUNTY FOOTHILLS-JACKSON COUNTY- WESTERN SISKIYOU COUNTY- 500 PM PDT WED APR 27 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHERN OREGON AND NORTHERN CALIFORNIA .DAY ONE...TODAY SLOW-MOVING THUNDERSTORMS WITH VERY HEAVY RAIN...SMALL HAIL... AND WIND GUSTS TO 40 MPH ARE ANTICIPATED THROUGH THE EVENING HOURS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. MS
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
457 PM PDT WED APR 27 2005
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0456 PM HEAVY RAIN 2 N GRANTS PASS 42.47N 123.33W
04/27/2005 2.00 INCH JOSEPHINE OR TRAINED SPOTTER
ONE HOUR RAINFALL ENDING AT 430 PDT.
&&
JACOBSPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
458 PM PDT WED APR 27 2005
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0456 PM HEAVY RAIN 4 NNW GRANTS PASS 42.50N 123.34W
04/27/2005 3.60 INCH JOSEPHINE OR TRAINED SPOTTER
ONE HOUR RAINFALL ENDING AT 430 PM PDT.
&&
JACOBSPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
459 PM PDT WED APR 27 2005
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0456 PM HEAVY RAIN 2 SSW MERLIN 42.49N 123.44W
04/27/2005 0.00 INCH JOSEPHINE OR TRAINED SPOTTER
45 MIN RAINFALL ENDING AT 455 PM PDT.
&&
JACOBSPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
524 PM PDT WED APR 27 2005
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0456 PM FLASH FLOOD GRANTS PASS 42.44N 123.32W
04/27/2005 JOSEPHINE OR LAW ENFORCEMENT
REPORTS OF NUMEROUS LOW LEVEL FLOODING IN STREET AND
BUILDINGS. REPORTED A DAY CARE CENTER FLOODED. MINOR MUD
SLIDES ALSO REPORTED.
&&
JACOBSPRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE MEDFORD OR
535 PM PDT WED APR 27 2005
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0456 PM HEAVY RAIN 2 SSW MERLIN 42.49N 123.44W
04/27/2005 2.00 INCH JOSEPHINE OR TRAINED SPOTTER
45 MIN RAINFALL ENDING AT 455 PM PDT.
&&
JACOBSThe national radar mosaic for the moment the first event began.
3 heavy rain. Local standard time, as filed.
A spotter 4 NNW of Grants Pass recorded 3.60 inches of rain in one hour ending at 1630 PDT.
A spotter 2 SSW of Merlin recorded 2.00 inches of rain in 45 minutes ending at 1655 PDT.
A spotter 2 N of Grants Pass recorded 2.00 inches of rain in one hour ending at 1630 PDT.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oregon in 2005Every state in 2005This day in weather historyWarnings in Oregon, April 2005
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5445408, 5445409, 5445410.